The Islamic State (IS) militant group has announced that its West African affiliate Boko Haram has a new leader.

Abu Musab al-Barnawi, who was previously spokesman for the Nigerian-based Islamists, is featured in the latest issue of an IS magazine.

It does not say what has become of the group's former leader Abubakar Shekau.

n the interview in IS's weekly Arabic magazine al-Naba, Mr Barnawi said his group "remained a force to be reckoned with" and said it had been drawing new recruits.

He described the group's battle against West African states as a war fought by Muslims against "apostates" and "crusaders".

Some of the details of his speech

However, Mr Barnawi pulled no punches, warning that towns which resisted Boko Haram in its mission to create an Islamic state would be flattenedHe also spoke of being against democracy and foreign educationIn his most recent magazine interview, he again objected to the name Boko Haram, by which local people call the group, as it means "Western education is forbidden" in HausaHe maintained IS was still strong in the region and promised to continue fighting West African governments.